Users Guide

ROUTE_REFRESH(2)
CISCO_ROUTE_REFRESH(128)
4_OCTET_AS(65)
MP_L2VPN_EVPN
Capabilities advertised to neighbor for IPv4 Unicast:
MULTIPROTO_EXT(1)
ROUTE_REFRESH(2)
CISCO_ROUTE_REFRESH(128)
4_OCTET_AS(65)
MP_L2VPN_EVPN
Prefixes accepted 1, Prefixes advertised 1
Connections established 2; dropped 0
Last reset never
Prefixes ignored due to:
Martian address 0, Our own AS in AS-PATH 0
Invalid Nexthop 0, Invalid AS-PATH length 0
Wellknown community 0, Locally originated 0
Local host: 110.111.180.195, Local port: 43081
Foreign host: 110.111.170.102, Foreign port: 179
Display the BGP L2VPN EVPN address family
OS10# show ip bgp l2vpn evpn
BGP local RIB : Routes to be Added , Replaced , Withdrawn
BGP local router ID is 110.111.170.102
Status codes: s suppressed, S stale, d dampened, h history, * valid, > best
Path source: I - internal, a - aggregate, c - confed-external,
r - redistributed/network, S - stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>r Route distinguisher: 110.111.170.102:65447
[3]:[0]:[32]:[110.111.170.102]/152 110.111.170.102 0 100 32768 ?
*> Route distinguisher: 110.111.170.107:64536
[3]:[0]:[32]:[110.111.170.107]/152 110.111.170.107 0 100 0 100 101 ?
Display the EVPN routes for host MAC addresses
OS10# show evpn mac
Type -(lcl): Local (rmt): remote
EVI Mac-Address Type Seq-No Interface/Next-Hop
50 00:00:00:aa:aa:aa rmt 0 55.1.1.3
50 00:00:00:cc:cc:cc lcl 0 ethernet1/1/8:1
OS10# show evpn mac evi 50
Type -(lcl): Local (rmt): remote
EVI Mac-Address Type Seq-No Interface/Next-Hop
50 00:00:00:aa:aa:aa rmt 0 55.1.1.3
50 00:00:00:cc:cc:cc lcl 0 ethernet1/1/8:1
VXLAN BGP EVPN routing
This section describes how EVPN implements overlay routing between L2 segments associated with EVIs belonging to the
same tenant on a VTEP. IETF draft draft-ietf-bess-evpn-inter-subnet-forwarding-05 describes EVPN inter-subnet forwarding,
Integrated Routing and Bridging (IRB), and how to use EVPN with IP routing between L2 tenant domains.
You set up overlay routing by assigning a VRF to each tenant, creating a virtual-network interface, and assigning an IP subnet
in the VRF to each virtual-network interface. The VTEP acts as the L3 gateway that routes traffic from one tenant subnet
to another in the overlay before encapsulating it in the VXLAN header and transporting it over the underlay fabric. On virtual
networks that associate with EVIs, EVPN IRB is enabled only after you create a virtual-network interface.
When you enable IRB for a virtual network/EVI, EVPN operation on each VTEP also advertises the local tenant IP-MAC bindings
learned on the EVPN-enabled virtual networks to all other VTEPs. The local tenant IP-MAC bindings are learned from ARP or
ICMPv6 protocol operation. They advertise as EVPN Type-2 BGP route updates to other VTEPs, each of whom then imports
and installs them as ARP/IPv6 neighbor entries in the dataplane.
VXLAN
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